Processing plastic involves many techniques that achieve different results according to the kind of applications it is meant for. Some of the techniques and processes are-

Structural foam
Structural Foam is a term commonly used to describe thermoplastic injection molding components made by the injection molding process which have a cellular core.

Rotational molding
Rotational molding differs from all other processing methods in that the heating, melting, shaping, and cooling stages all occur after the polymer is placed in the mold, and no external pressure is applied during forming.

Injection molding
Most thermoplastics can be processed by Injection Molding. Enhanced quality, reduced cycle times and component weight reductions can be achieved by gas assisted injection molding.

Injection blow molding
Injection blow molding is used for the production of hollow objects in large quantities. The main applications are bottles, jars and other containers. The Injection blow molding process produces bottles of superior visual and dimensional quality compared to extrusion blow molding.

Injection stretch molding
Injection stretch blow molding is used for the production of high quality containers.

Thermoforming
Thermoforming has close similarities with Vacuum Forming except that greater use is made of air pressure and plug assisted forming of the softened sheet. Only thermoplastics sheet can be processed by this method.

Extrusion blow molding
Used for the production of hollow objects in large quantities. Obvious application are bottles and similar containers.

Insert molding
Inserts can either be incorporated at the time of the molding process, or be inserted as a post molding operation

Expanded Polystyrene (EPS)
Expanded polystyrene (EPS) is used for the production of a number of applications. However its major application is as a protective packaging for consumer electronic products and white goods.

Vacuum Forming
Vacuum formed products are all around us and play a major part in our daily lives. Virtually all thermoplastics can be supplied as sheet and vacuum formed.